Safety Manager Safety Manual - Tuv-fs.com

Unit shutdown outputs
The unit shutdown outputs must:
• Be allocated on safe modules (such as a SDO-0824 or SDOL-0424 module)
• Have their fault reaction state set to Low.
This guarantees that Safety Manager directs the process to its safe state if a
fault occurs which affects this output.
• Have set the power-up status of the unit shutdown output to ON.
This allows a correct start-up of Safety Manager with activated unit relays.
For optimal availability it is recommended that unit shutdown outputs are
allocated to redundant output modules.
Process outputs (safety related)
The process outputs must be allocated to a Safety Manager output module of the
type:
• SDO-0824 Safety-related digital output module
(24 Vdc, 0.55 A, 8 channels)
• SAO-0220m Safety-related analog output module
(0(4)-20 mA, 2 channels)
• SDO-04110 Safety-related digital output module
(110 Vdc, 0.32 A, 4 channels)
• SDO-0448 Safety-related digital output module
(48 Vdc, 0.75 A, 4 channels)
• SDO-0424 Safety-related digital output module
(24 Vdc, 2 A, 4 channels)
• SDOL-0424 Safety-related loop-monitored digital output module
(24 Vdc, 1 A, 4 channels)
• SDOL-0448 Safety-related loop-monitored digital output module
(48 Vdc, 0.5A, 4 channels
To allow the programming of the response via the application, the fault reaction
of these outputs must be set to Appl. This disables the automatic response of
Safety Manager in case a fault occurs at safety-related output modules.
Application programming
To realize unit shutdown in the functional logic diagrams, all diagnostic inputs
related to output modules of each process unit are connected to an AND gate.
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